High glucose levels can cause eye problems such as blurred vision, retinopathy, cataracts and Glaucoma . People with diabetes have a higher risk of blindness than those with non-diabetes. In fact, diabetes is the main cause of blindness in adults aged 20-74. Therefore, patients with diabetes should regularly visit an ophthalmologist.

Blurred vision

Blurred vision is a common eye problem in patients with diabetes. Crystals may swell and affect vision when blood glucose is high. To improve the situation, patients need to restore blood glucose to the target range, as far as vision can take 3 months to return to normal. This can further develop into blindness caused from diabetes.


Patients with diabetes are 40% more likely to cause glaucoma than those without diabetes, and the risk increases with age. When the pressure in the eye increases and the aqueous water cannot be drained, there will be glaucoma, which may cause damage to blood vessels and optic nerve, and even decreased vision. In the early stages, many glaucoma patients may have no symptoms until severe visual impairment occurs, such as headache, eye pain, blurred vision, halo, tears, etc. The most common type of glaucoma is Open-angle glaucoma, which can be treated with drugs to reduce eye pressure and accelerate the removal of aqueous water.


The crystal of the eye helps us to see and focus on the image. A cataract is a normal crystal that becomes cloudy, making it impossible to see all images. Anyone may get cataracts, but diabetic patients are 60 percent more likely to have cataracts and are more likely to get cataracts at a younger age and are faster.

For mild cataract patients, you can wear glasses, contact lenses or other visual aids to improve vision. Surgery is the only effective treatment if cataract has affected daily life and neither glasses nor contact lenses can improve vision. The doctor will remove the crystal from the eye and replace it with an artificial lens.

Current article: Eye Disease Blindness From Diabetes

Diabetic retinopathy

Diabetic retinopathy is the general name for all retinopathy caused by diabetes. There are two main types of retinopathy: nonproliferative and proliferative. High blood glucose levels can damage small blood vessels in the retina, which can lead to diabetic retinopathy. The longer you develop diabetes, the more likely you are to develop diabetic retinopathy. Patients with diabetes who can keep blood sugar within range can reduce the risk of disease.

Patients with type 1 diabetes are less likely to suffer from diabetic retinopathy before puberty and are less likely to occur in adults unless they have at least 5 years of history of type 1 diabetes.

To prevent blindness eye problems from diabetes, patients should control blood sugar and blood pressure, quit smoking and improve overall health. Once you notice that vision looks blurred, tell your ophthalmologist. There are several factors that affect whether you have retinopathy: blood glucose control, blood pressure level, diabetes duration, and genes. If there are changes in vision is detected, the retina may have been severely damaged, and the following symptoms may indicate an urgent eye condition: dark spots or shimmering light in vision, holes in the field of vision, blurred sight.

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